by Rocio Nallim
by Maria Esmeral
Translating hydrogen’s potential to real world solutions
What we learned
- The global share of renewables in the energy generation is expected to increase from 25% to 86% by 2050. Due to the natural variability of the wind and solar energy generation, energy storage will play a key role for the integration of renewables.
- The integration of VRE (Variable Renewable Energy) can be categorised into a framework made of six different phases, which can be used to prioritise different measures to support system flexibility, identify relevant challenges and implement appropriate measures to support the system integration of VRE. There are studies that show how countries that reached phase 3 have presented a renewable energy surplus of 25% in some periods of time.
- The low specific weight and high energy density makes the Hydrogen an excellent energy carrier and feasible for store energy.
- Batteries are suitable to store energy for shorter periods of time (hours, days) compared to Hydrogen, which can store energy for weeks and months (long-term storage).
- Blending hydrogen into the existing natural gas pipeline network is possible but it depends on each country regulations.
- Hydrogen in the transportation sector is not a dream; today there are cars, buses, material handling equipment, trucks, boats, and trains already operating with this technology.
- Hydrogen vehicles are not competing with electrical or hybrids cars, those are actually complementing each other to fulfil the range of applications that were dominated by fossil fuel vehicles.
- The fuel cell car architecture is based on hybrid vehicles; the difference is the replacement of the combustion engine with the fuel cell stack and the gasoline tank with the hydrogen tank.
- Investment in Hydrogen infrastructure has increased since 2015, mainly led by Japan, the USA, Europe, China and Korea.
- Hydrogen powered buses have shown better performance in cold weather and hills and a faster filling compared to natural gas buses.
- Hydrogen is also becoming a feasible solution at residential scale such as generators in remote areas to produce electricity or through cogeneration engines to produce heat and electricity.
Rocio Nallim. As a Project Engineer at Agap2, a consultant for GRTgaz, Rocio Nallim’s current work focused on bio-methane injection project on the gaz network. She previously worked with TOTAL GRP, as Project Engineer, focusing on Power-to-H2 subject that she is happy to share with us.
Maria Esmeral. As a Fuel Cell Engineer at Alten for Toyota Motor Europe, Maria Esmeral currently works on Fuel Cell applications and systems integration. She is happy to share numerous successful hydrogen applications in the transport sector as technologies of the present.